Chemical Engineering Thermodynamics Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is Negative Positive Infinity Zero Negative Positive Infinity Zero ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Critical compressibility factor for all substances Vary as square of the absolute pressure None of these Vary as square of the absolute temperature Are more or less constant (vary from 0.2 to 0.3) Vary as square of the absolute pressure None of these Vary as square of the absolute temperature Are more or less constant (vary from 0.2 to 0.3) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by(where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.) μ° + T lnf μ°+ R lnf μ° + R/T lnf μ° + RT ln f μ° + T lnf μ°+ R lnf μ° + R/T lnf μ° + RT ln f ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The most important application of distribution law is in Distillation Evaporation Drying Liquid extraction Distillation Evaporation Drying Liquid extraction ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Free energy Change during a spontaneous process has a negative value Remains unchanged in reversible processes carried at constant temperature and pressure Decreases in all spontaneous (or irreversible) processes All of these Change during a spontaneous process has a negative value Remains unchanged in reversible processes carried at constant temperature and pressure Decreases in all spontaneous (or irreversible) processes All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzman's constant, T = absolute temperature) √(6KT/m) √(2KT/m) 3KT/m √(3KT/m) √(6KT/m) √(2KT/m) 3KT/m √(3KT/m) ANSWER DOWNLOAD EXAMIANS APP
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